<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .box {
            position: relative;
        }

        .box video {
            width: 500px;
            height: 280px;
        }

        .sanguozhi {
            position: absolute;
            inset: 0;
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 100px;
            font-weight: bold;
            mix-blend-mode: screen;
            font-family: 华文隶书;
        }
    </style>
</head>
<body>
<div class="box">
    <video loop id="video"   autoplay src="fire_copy.mp4"></video>
    <div class="sanguozhi">三国志</div>
</div>

<button onclick="play()">播放</button>

<script>
    function play() {
        video.play();
    }
</script>
</body>
</html>